MINI2

swoosta · Oct 21st, 2007, 10:56 AM

2005 Mini One has a coolant leak which only seems to only leak after being left overnight. There are no signs of coolant in garage but when the car is taken out onto the drive and is running it will drip for about a minute from either the rear of engine or under the bulk-head. It is definitely anti freeze as it is blue and the level is dropping. After it has lost a certain amount of fluid it seems to stop. Any ideas?

Mess · Oct 21st, 2007, 02:06 PM

It could be a number of things. I had a coolant loss not so long ago (3weeks) and it was down to a hole in something near the gaskett where the coolant goes in and the coolant was being burnt off in the engine.

Take it to the stealer dealer and they will run a pressure test on it and find out where its coming from.

If your under warrenty still there shouldnt be any charge.

Buz999 · Oct 22nd, 2007, 10:10 AM

Have a good look at the header tank its self, this can sometimes have a split on the centre joint. This may explain that the leak stops when it reaches a certain level and leak appears when running as when the coolant gets hot the tank will expand and open split more.
Good luck as you need to get this sorted asap now the cold weather is on its way.

rpet13 · Oct 23rd, 2007, 06:35 PM

Just had the same thing in my 2005 Cooper.... It was a crack in the housing & had to be replaced. Ofcourse, I am at 53K miles, so my warranty was done. Cost me $300.

swoosta · Nov 2nd, 2007, 06:30 PM

Just got the car back from Bmw. It was the themostat leaking. Paid on warranty thank god. They loaned me a bmw tourer 3 series.

21Blue · Nov 3rd, 2007, 04:50 AM

Ive had it happen to me 2 times on my 05 cooper, and i think a third time but I sold the car before I got a chance to check it out. It was the thermostat on both occasions. The car is out of warranty, but being a recurring problem they fix it for free.

kydso · Dec 15th, 2007, 05:50 PM

I have the same problem, with my 2005 s with 59000 miles. I'll be taking it in for a pressure test. Mine only leaks after a long drive, then it sits for a couple of days and leaves a small 1 or 2 oz. puddle on the floor. But it does not do it all the time. About once a month!

Oct 21st, 2007, 10:56 AM	#1
swoosta MINI2 Newbie Join Date: Oct 2007 Local Time: 07:12 PM Posts: 4 Offline	Bmw mini coolant leak 2005 Mini One has a coolant leak which only seems to only leak after being left overnight. There are no signs of coolant in garage but when the car is taken out onto the drive and is running it will drip for about a minute from either the rear of engine or under the bulk-head. It is definitely anti freeze as it is blue and the level is dropping. After it has lost a certain amount of fluid it seems to stop. Any ideas?

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Oct 21st, 2007, 02:06 PM	#2 (permalink)
Mess Go Go Gadget Mini Join Date: Apr 2007 Location: Newcastle Upon Tyne Local Time: 08:12 PM Posts: 687 Offline	It could be a number of things. I had a coolant loss not so long ago (3weeks) and it was down to a hole in something near the gaskett where the coolant goes in and the coolant was being burnt off in the engine. Take it to the stealer dealer and they will run a pressure test on it and find out where its coming from. If your under warrenty still there shouldnt be any charge.

Oct 22nd, 2007, 10:10 AM	#3 (permalink)
Buz999 What mod next? Join Date: Jan 2007 Location: Ludlow,Shropshire Local Time: 08:12 PM Posts: 248 Offline	Have a good look at the header tank its self, this can sometimes have a split on the centre joint. This may explain that the leak stops when it reaches a certain level and leak appears when running as when the coolant gets hot the tank will expand and open split more. Good luck as you need to get this sorted asap now the cold weather is on its way.

Oct 23rd, 2007, 06:35 PM	#4 (permalink)
rpet13 MINI2 Newbie Join Date: Oct 2007 Local Time: 03:12 PM Posts: 2 Offline	Just had the same thing in my 2005 Cooper.... It was a crack in the housing & had to be replaced. Ofcourse, I am at 53K miles, so my warranty was done. Cost me $300.

Nov 2nd, 2007, 06:30 PM	#5 (permalink)
swoosta MINI2 Newbie Join Date: Oct 2007 Local Time: 07:12 PM Posts: 4 Offline	Just got the car back from Bmw. It was the themostat leaking. Paid on warranty thank god. They loaned me a bmw tourer 3 series.

Nov 3rd, 2007, 04:50 AM	#6 (permalink)
21Blue MINI2 Master My Classifieds Join Date: May 2003 Location: Brisbane, Melbourne Local Time: 06:12 AM Posts: 849 Offline	Ive had it happen to me 2 times on my 05 cooper, and i think a third time but I sold the car before I got a chance to check it out. It was the thermostat on both occasions. The car is out of warranty, but being a recurring problem they fix it for free.

Dec 15th, 2007, 05:50 PM	#7 (permalink)
kydso MINI2 Newbie Join Date: Dec 2007 Local Time: 11:12 AM Posts: 1 Offline	I have the same problem, with my 2005 s with 59000 miles. I'll be taking it in for a pressure test. Mine only leaks after a long drive, then it sits for a couple of days and leaves a small 1 or 2 oz. puddle on the floor. But it does not do it all the time. About once a month!

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